基于《中国分类主题词表》的旅游本体知识库研究与实现
发布时间：2019-03-21 17:53
【摘要】：随着网络技术的不断发展，人类对网络的依赖性也越来越强。据统计，，到2012年初，中国的网民数量已经超过5亿。网络的信息纷繁复杂、浩如烟海，而面对如此众多的网络信息，几乎所有的网民都在借助搜索引擎来查询自己需要的信息。然而，目前的搜索引擎还不是很智能化，其所能理解和表达的语义还很有限。基于此，现在计算机领域已经涌现出了一大批学者对网络中语义信息的表达、传递、共享等展开了深入研究。其中，本体知识库就是目前语义研究的一个热点。 本体是一种有效的建模工具，它能在语义层次上对信息系统的概念模型进行描述和建模，不论是在受限领域还是广域领域的知识建模上都有非常大的优势。如果能将本体理论应用到搜索引擎及自动问答系统等的建设中，必将会对这些系统提升性能有非常大的帮助。 鉴于本体的语义表达优势，本文重点探索的就是领域本体的具体构建过程以及领域本体在基于知识库的问答系统中所能做出的贡献。在经过旅游领域专家的指导下，并参考了《中国分类主题词表》和中国国家旅游业相关标准的基础上，本文主要遵循了目前最流行的本体构建“七步法”，面向山西旅游景点，重点是佛教圣地五台山，构建了旅游领域本体知识库框架，并使用本体编辑工具protégé建立了具体的五台山寺庙的本体知识库。针对所构建的本体知识库，本文设计并实现了一个简单的问答系统，使用了SPARQL查询语言和Jena推理工具包对本体知识库进行了查询操作，从而验证了本文构建的本体知识库是有效的。 总的来说，本文的研究内容及成果主要在两方面： 1、选择旅游领域为研究范围，构建了一个结构较为良好的面向自动问答系统的领域本体框架，并选择佛教圣地五台山作为其实例数据，从而对领域本体的构建方法、步骤及原则进行了尝试性研究。 2、为了验证所构建本体知识库的可行性和合理性，本文开发了一个简单的旅游本体问答系统，以证明本体的有效性和实际的效果。系统结果最终表明，本文构建的旅游本体知识库是有效的。
[Abstract]:With the continuous development of network technology, human dependence on the network is becoming stronger and stronger. According to statistics, by the beginning of 2012, the number of Internet users in China had exceeded 500 million. The information of the network is complicated and vast. In the face of so much network information, almost all the netizens are searching for the information they need with the help of the search engine. However, the current search engine is not very intelligent, its understanding and expression semantics are still very limited. Based on this, a large number of scholars have emerged in the computer field to express, transfer, share and so on semantic information in the network in-depth research. Among them, ontology knowledge base is a hot topic in semantic research. Ontology is an effective modeling tool, which can describe and model the conceptual model of information system at the semantic level. It has great advantages in knowledge modeling in both restricted domain and wide-area domain. If the ontology theory can be applied to the construction of search engine and automatic question answering system, it will be of great help to improve the performance of these systems. In view of the semantic advantages of ontology, this paper focuses on the construction process of domain ontology and the contribution of domain ontology to the question and answer system based on knowledge base. Under the guidance of experts in the field of tourism, and referring to the Thesaurus of Chinese Classification and the relevant standards of Chinese national tourism, this paper mainly follows the most popular "seven-step method" of ontology construction, which is oriented to Shanxi tourist attractions. The emphasis is placed on the Buddhist holy site Wutai Mountain. The framework of tourism domain ontology knowledge base is constructed, and the ontology knowledge base of Wutai Mountain temple is established by using ontology editing tool Prod 茅 g 茅. Aiming at the ontology knowledge base, a simple question answering system is designed and implemented in this paper. The query operation of the ontology knowledge base is carried out by using SPARQL query language and Jena reasoning toolkit. The results show that the ontology knowledge base constructed in this paper is effective. In general, the research contents and achievements of this paper are mainly in two aspects: 1, the tourism field is chosen as the research scope, and a domain ontology framework for automatic question answering system is constructed, which has a good structure. And the Buddhist holy site Wutai Mountain is chosen as its example data, and then the method, steps and principles of constructing domain ontology are studied tentatively. 2. In order to verify the feasibility and rationality of the ontology knowledge base, a simple tourism ontology question answering system is developed to prove the validity and practical effect of the ontology. Finally, the system results show that the tourism ontology knowledge base constructed in this paper is effective.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP391.1;TP311.52
本文编号：2445176
[Abstract]:With the continuous development of network technology, human dependence on the network is becoming stronger and stronger. According to statistics, by the beginning of 2012, the number of Internet users in China had exceeded 500 million. The information of the network is complicated and vast. In the face of so much network information, almost all the netizens are searching for the information they need with the help of the search engine. However, the current search engine is not very intelligent, its understanding and expression semantics are still very limited. Based on this, a large number of scholars have emerged in the computer field to express, transfer, share and so on semantic information in the network in-depth research. Among them, ontology knowledge base is a hot topic in semantic research. Ontology is an effective modeling tool, which can describe and model the conceptual model of information system at the semantic level. It has great advantages in knowledge modeling in both restricted domain and wide-area domain. If the ontology theory can be applied to the construction of search engine and automatic question answering system, it will be of great help to improve the performance of these systems. In view of the semantic advantages of ontology, this paper focuses on the construction process of domain ontology and the contribution of domain ontology to the question and answer system based on knowledge base. Under the guidance of experts in the field of tourism, and referring to the Thesaurus of Chinese Classification and the relevant standards of Chinese national tourism, this paper mainly follows the most popular "seven-step method" of ontology construction, which is oriented to Shanxi tourist attractions. The emphasis is placed on the Buddhist holy site Wutai Mountain. The framework of tourism domain ontology knowledge base is constructed, and the ontology knowledge base of Wutai Mountain temple is established by using ontology editing tool Prod 茅 g 茅. Aiming at the ontology knowledge base, a simple question answering system is designed and implemented in this paper. The query operation of the ontology knowledge base is carried out by using SPARQL query language and Jena reasoning toolkit. The results show that the ontology knowledge base constructed in this paper is effective. In general, the research contents and achievements of this paper are mainly in two aspects: 1, the tourism field is chosen as the research scope, and a domain ontology framework for automatic question answering system is constructed, which has a good structure. And the Buddhist holy site Wutai Mountain is chosen as its example data, and then the method, steps and principles of constructing domain ontology are studied tentatively. 2. In order to verify the feasibility and rationality of the ontology knowledge base, a simple tourism ontology question answering system is developed to prove the validity and practical effect of the ontology. Finally, the system results show that the tourism ontology knowledge base constructed in this paper is effective.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP391.1;TP311.52
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